Handle eye construction of tools



Feb. '1, 1944. SCHWARZMAYR HANDLE EYE CONSTRUCTION OF TOOLS Filed Mgy15, 194:5

Patented Feb. 1, 1944 UNITED STATES PATENT OFFICE HANDLE EYECONSTRUCTION OF TOOLS Ludwig Schwarzmayr, San Francisco, Calif.

Application May 15, 1943, Serial No. 487,412

1 Claim. (Cl. 145-29) One object of the invention is to provide toolswith a handle eye construction which facilitates quick replacement of abroken handle, which is of great advantage when the old handle breaks inthe performance of work, which very' often happens when pulling bignails with a clawhammer.

Another object is to more firmly mount the handle in the tool, which isvery desirable in striking tools, such as an axe or a hammer.

I attain these objects by the handle eye construction illustrated in theaccompanying drawing in which- Figure 1 is a sectional view of thehandle eye construction of the invention in conjunction with aclaw-hammer.

Fig. 2 is a sectional view of the handle eye construction of the hammerof Fig. 1 with a handle mounted therein.

Fig. 3 is a section of the handle eye construction of the hammer on line3-3 in Fig. 1.

Fig. 4 is a sectional view of the handle eye construction of theinvention in conjunction with an axe.

Fig. 5 is a sectional view of the improved handle eye construction inconjunction with a sledgehammer.

Fig. 1 shows a claw-hammer l, the body 2 of which ha a handle eye 3constructed in accordance with my invention. The walls 44 of theintermediate section 5 of the eye 3 are parallel to the longitudinalaxis 6 of the eye 3. The handle entrance 1 of the eye has walls 88 whichare deflected outwardly from the walls 4-4, and on the ends of thedeflected walls 88 are cutters 9, which, as is shown in Fig. 2, cutsurplus wood Ill-l from the handle II when the handle is forced into theeye. In the upper end section l2 of the eye the walls l3l3 are slightlydeflected outwardly from the walls 4-4. When mounting a handle in theeye of the tool body the leading end 14 is shaped to be received by thehandle entrance I, and when the handle is forced into the constrictedsection of the eye the deflected walls 8B compress the wood of thehandle, thereby a greater quantity of wood is caused to enter the eye ofthe tool than does in handle eyes of common construction, andconsequently the handle is mounted more firmly in the body of the tool.To further secure the handle more firmly in the body of the tool watermay be applied to the end portion I4 of the handle and caused to flowinto the spaces 15-15 formed between the deflected walls l3-l3 and thecompressed wood of the handle. When the compressed wood absorbs thewater in the spaces Iii-l5 it expands to its original dimension, wherebya head is formed without the use of a wedge, which is commonly used toform a head to prevent the tool body from sliding from the handle.

Fig. 4 shows the improved handle eye construction in conjunction with anaxe, in section. The handle eye IS in the body 20 of the axe has anintermediate section 2| with walls 22-22 parallel to the longitudinalaxis 23 of the eye, and from the walls 22-22 extend the outwardlydeflected walls 2424. The handle entrance section 25 of the eye haswalls 2626 extending from the sides 2222 in an outwardly deflectedposition, and on their outer ends are cutters 21, which project from theface 28 of the body of the axe, thereby facilitating the cutting ofsurplus wood from a handle forced into the eye. The dotted lines 29 showthe position of a handle when mounted in the eye of the axe.

Fig. 5 shows the improved handle eye construction in conjunction with asledge-hammer. The eye 30 in the body 3| of the sledge-hammer has anintermediate section 32 with walls 33-33 parallel to the longitudinalaxis 34 of the eye, and the upper end section 35 has walls 3l3loutwardly deflected from the walls 3333. The handle entrance section 38of the eye has walls 39-39 outwardly deflected from the walls 33-33, andon the ends of the deflected walls 3939 are cutters 4B, which projectbeyond the face 4| of the body of the sledge-hammer. The position of ahandle when mounted in the eye is shown in dotted lines 42.

I claim:

In a handle eye construction of a tool, a tool body having an elongatedeye, the walls in the intermediate section of said eye being parallel tothe longitudinal axis of the eye, the walls in the handle entrancesection of said eye being deflected outwardly from the first mentionedwalls, and a cutter on the end of each of said outwardly deflected wallsfor cutting surplus wood from a handle forced into the eye.

LUDWIG SCHWARZMAYR.

